CVE-2025-20160
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
Podatność w implementacji protokołu TACACS+ w oprogramowaniu Cisco IOS i Cisco IOS XE może pozwolić nieautoryzowanemu, zdalnemu atakującemu na przeglądanie wrażliwych danych lub ominięcie uwierzytelnienia. Problem wynika z braku odpowiedniej weryfikacji skonfigurowanego wspólnego klucza TACACS+.
Risk Assessment
Atakujący mogą przechwytywać i odczytywać niezaszyfrowane wiadomości TACACS+ lub podszywać się pod serwer TACACS+, co może prowadzić do ujawnienia wrażliwych informacji lub nieautoryzowanego dostępu do urządzenia.
Recommendation
Zaleca się skonfigurowanie wspólnego klucza TACACS+ oraz wdrożenie odpowiednich środków zabezpieczających, aby zminimalizować ryzyko przechwycenia komunikacji.
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Lantronix SLC8000 before firmware v9.7.0.2, EMG8500/EMG7500 before firmware v9.7.0.1, and all firmware versions of SLB882/SLCx-03/SLCx-02 contain a stack-based buffer overflow vulnerability that allows authenticated attackers to potentially execute arbitrary code by exploiting an undocumented mfc eeprom read command that copies unbounded user input into a bounded stack buffer before passing it to a system() call.
Original NVD description (English source)
A vulnerability in the implementation of the TACACS+ protocol in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to view sensitive data or bypass authentication. This vulnerability exists because the system does not properly check whether the required TACACS+ shared secret is configured. A machine-in-the-middle attacker could exploit this vulnerability by intercepting and reading unencrypted TACACS+ messages or impersonating the TACACS+ server and falsely accepting arbitrary authentication requests. A successful exploit could allow the attacker to view sensitive information in a TACACS+ message or bypass authentication and gain access to the affected device.

